org.apache.flink.runtime.rest.handler.job.SubtaskExecutionAttemptAccumulatorsHandler Maven / Gradle / Ivy
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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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*/
package org.apache.flink.runtime.rest.handler.job;
import org.apache.flink.api.common.time.Time;
import org.apache.flink.runtime.accumulators.StringifiedAccumulatorResult;
import org.apache.flink.runtime.executiongraph.AccessExecution;
import org.apache.flink.runtime.executiongraph.AccessExecutionGraph;
import org.apache.flink.runtime.executiongraph.AccessExecutionJobVertex;
import org.apache.flink.runtime.executiongraph.AccessExecutionVertex;
import org.apache.flink.runtime.rest.handler.HandlerRequest;
import org.apache.flink.runtime.rest.handler.RestHandlerException;
import org.apache.flink.runtime.rest.handler.legacy.ExecutionGraphCache;
import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
import org.apache.flink.runtime.rest.messages.JobIDPathParameter;
import org.apache.flink.runtime.rest.messages.JobVertexIdPathParameter;
import org.apache.flink.runtime.rest.messages.MessageHeaders;
import org.apache.flink.runtime.rest.messages.ResponseBody;
import org.apache.flink.runtime.rest.messages.SubtaskIndexPathParameter;
import org.apache.flink.runtime.rest.messages.job.SubtaskAttemptMessageParameters;
import org.apache.flink.runtime.rest.messages.job.SubtaskAttemptPathParameter;
import org.apache.flink.runtime.rest.messages.job.SubtaskExecutionAttemptAccumulatorsInfo;
import org.apache.flink.runtime.rest.messages.job.UserAccumulator;
import org.apache.flink.runtime.webmonitor.RestfulGateway;
import org.apache.flink.runtime.webmonitor.history.ArchivedJson;
import org.apache.flink.runtime.webmonitor.history.JsonArchivist;
import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.concurrent.Executor;
/**
* Request handler for the subtask execution attempt accumulators.
*/
public class SubtaskExecutionAttemptAccumulatorsHandler
extends AbstractSubtaskAttemptHandler
implements JsonArchivist {
/**
* Instantiates a new Abstract job vertex handler.
*
* @param leaderRetriever the leader retriever
* @param timeout the timeout
* @param responseHeaders the response headers
* @param messageHeaders the message headers
* @param executionGraphCache the execution graph cache
* @param executor the executor
*/
public SubtaskExecutionAttemptAccumulatorsHandler(
GatewayRetriever leaderRetriever,
Time timeout,
Map responseHeaders,
MessageHeaders messageHeaders,
ExecutionGraphCache executionGraphCache,
Executor executor) {
super(leaderRetriever, timeout, responseHeaders, messageHeaders, executionGraphCache, executor);
}
@Override
protected SubtaskExecutionAttemptAccumulatorsInfo handleRequest(
HandlerRequest request,
AccessExecution execution) throws RestHandlerException {
return createAccumulatorInfo(execution);
}
@Override
public Collection archiveJsonWithPath(AccessExecutionGraph graph) throws IOException {
List archive = new ArrayList<>(16);
for (AccessExecutionJobVertex task : graph.getAllVertices().values()) {
for (AccessExecutionVertex subtask : task.getTaskVertices()) {
ResponseBody curAttemptJson = createAccumulatorInfo(subtask.getCurrentExecutionAttempt());
String curAttemptPath = getMessageHeaders().getTargetRestEndpointURL()
.replace(':' + JobIDPathParameter.KEY, graph.getJobID().toString())
.replace(':' + JobVertexIdPathParameter.KEY, task.getJobVertexId().toString())
.replace(':' + SubtaskIndexPathParameter.KEY, String.valueOf(subtask.getParallelSubtaskIndex()))
.replace(':' + SubtaskAttemptPathParameter.KEY, String.valueOf(subtask.getCurrentExecutionAttempt().getAttemptNumber()));
archive.add(new ArchivedJson(curAttemptPath, curAttemptJson));
for (int x = 0; x < subtask.getCurrentExecutionAttempt().getAttemptNumber(); x++) {
AccessExecution attempt = subtask.getPriorExecutionAttempt(x);
if (attempt != null){
ResponseBody json = createAccumulatorInfo(attempt);
String path = getMessageHeaders().getTargetRestEndpointURL()
.replace(':' + JobIDPathParameter.KEY, graph.getJobID().toString())
.replace(':' + JobVertexIdPathParameter.KEY, task.getJobVertexId().toString())
.replace(':' + SubtaskIndexPathParameter.KEY, String.valueOf(subtask.getParallelSubtaskIndex()))
.replace(':' + SubtaskAttemptPathParameter.KEY, String.valueOf(attempt.getAttemptNumber()));
archive.add(new ArchivedJson(path, json));
}
}
}
}
return archive;
}
private static SubtaskExecutionAttemptAccumulatorsInfo createAccumulatorInfo(AccessExecution execution) {
final StringifiedAccumulatorResult[] accs = execution.getUserAccumulatorsStringified();
final ArrayList userAccumulatorList = new ArrayList<>(accs.length);
for (StringifiedAccumulatorResult acc : accs) {
userAccumulatorList.add(new UserAccumulator(acc.getName(), acc.getType(), acc.getValue()));
}
return new SubtaskExecutionAttemptAccumulatorsInfo(
execution.getParallelSubtaskIndex(),
execution.getAttemptNumber(),
execution.getAttemptId().toString(),
userAccumulatorList);
}
}